You conveniently forget all the religious kingdoms of history (which were all totalitarian) as well as the Holy Roman Empire.
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Amazing, isn’t it? Once the bible was published, and widely available in the people’s own language, how quickly the war lords of Europe were tamed.
Imagine that! The people learned that we are equal before God, and demanded that all men ( including their rulers) be equal before just and honest courts of law.
A revolutionary idea, don’t you think? Once free themselves, they freed the slaves worldwide.
LOL, if you ignore a millennium of mechanized bloodshed, that is. Europe was perpetually at war with itself, all through the ages, culminating with the blood-bath of the 1940s.